March 3rd, 2013 05:28 PM

BERLIN—The world’s biggest high-tech fair, the CeBIT, kicks off Tuesday, pinning its hopes on growing tech regions Asia and Africa and the hot topic of social media to beat competition from other high-profile fairs.

More than 4,000 exhibitors from some 70 countries are expected to set up shop in the northern German city of Hanover, about the same number as last year despite the weak economic environment, organizers said.

“CeBIT is becoming increasingly international as we see countries in Asia and Africa developing more and more into IT nations,” said Hartwig von Sass, a spokesman for organisers Deutsche Messe.

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However, even with stable exhibitor numbers, the CeBIT is a far cry from its glory days at the height of the dot-com boom, when 8,000 firms would scrap for places in the hanger-like halls of the sprawling fair grounds.

CeBIT is battling competition from the swanky Consumer Electronics Show in Las Vegas and the just-finished Mobile World Congress in Barcelona but Sass insisted that Hanover was still top of the tree.

“No matter what other fair you look at, they’re all half as big as us,” said Sass, who said 350,000 visitors swarmed through the stands last year.

CeBIT is also the only fair catering to the whole IT sector rather than a specific part, he added, announcing that tech giants like IBM, Microsoft, SAP and Google would be present at this year’s event.

The IT industry enters the CeBIT in relatively bullish mood, with German industry group BITKOM forecasting in the run-up to the fair that global tech spending was poised to rise by 5.1 percent to 2.7 trillion euros ($3.5 trillion) this year.

This year’s CeBIT theme is “shareconomy”, the increasing trend of users sharing data and things, with examples being “carsharing” and of course social media sites like Facebook, Twitter and Instagram.

Several exhibits will be devoted to shifting the way office communications are run, moving from email — which some experts see as increasingly obsolete — to internal social media platforms.

Innovative ways to process vast amounts of data as well as the perennial issues of cloud computing — storing data remotely — and Internet security will also be major topics at this year’s event.

But as ever with the CeBIT, it is not all work and no play as there will be the usual display of head-spinning gadgets and pointless but fun applications to entertain the punters.

For those who despair of finding the right items in massive supermarkets, a firm has developed a trolley that communicates with the shelves, points the hapless shopper in the right direction and ticks things off the list.

And for the strains of daily life, a communications firm has created an app that gives you a read-out on your stress levels just from testing your voice.

Another firm has pioneered the must-have piece of furniture for those accused of being couch potatoes.

The chair measures weight, heart rate, blood pressure and other important health data and, if it doesn’t like what it sees, transforms into a rowing machine so you can shift a few pounds while you watch your favorite program.

While the fair officially throws open its doors on Tuesday, German Chancellor Angela Merkel will give the opening speech the night before along with Polish Prime Minister Donald Tusk

Poland is this year’s “partner country”, with around 150 Polish exhibitors expected to make the trip over the border.